Protected areas are the cornerstones around which regional, national and international conservation strategies are developed. Through protected area designations, lands and waters are set-aside in-perpetuity to preserve functioning natural ecosystems, act as refuges for species, and maintain ecological processes. Complementary conservation strategies preserve land for the sustainable use of natural resources, or for the protection of significant geologic and cultural features or open space. PAD-US 1.1 (CBI Edition) attempts to include all available spatial data on these places. It is our goal to publish the most comprehensive geospatial data set of U.S. protected areas to date.

PAD-US 1.1 (CBI Edition) provides a rich picture of protected area coverage useful at a variety of scales. It portrays the nation’s protected areas with a standardized spatial geometry and numerous valuable attributes on land ownership, management designations and conservation status (using GAP and IUCN coding systems). It is developed with the purpose of allowing any user – from the general public to professional land managers – to know exactly what lands are protected anywhere the United States and allows them to easily use this inventory for conservation, land management, planning, recreation and other uses. This version should substantially improve our national inventory of protected lands.